Mars Definition and 506 Threads

NASA people are excited about a new (old actually) rock that their rover Perseverance found a few days ago. Space.com article here. Short NASA video:

Would it be possible to send a rocket to Mars containing a number of shaped charges that could be directed at the surface, timed and positioned to direct the excavated material back towards Earth for collection above the atmosphere?

I tried to calculate it, but I think I'm going wrong way. I found m^2/s^2 in the definite integral... (170539114.487m^2/s^2) I don't know what it means!!

https://www.cnn.com/2024/01/25/world/nasa-mars-ingenuity-helicopter-mission-ends-scn/index.html

https://mars.nasa.gov/resources/27873/perseverance-rover-zooms-in-on-ancient-mars-river/ Look NASA, Congress, no astronauts required...

https://bigthink.com/hard-science/accidentally-killed-life-mars/ Interesting article about a type of life that might exist on Mars. It brings up questions on how do we test for the existence of life.

I called the point E1 the point where Earth was at Feb,11 1990 and E2 at 30, Dec 1991, S for Sun and M for Mars and r for the Mars-Sun distance. Since we got a whole sidereal period between both alongation, I assumed Mars was on the same point in space (wrt Sun). I think I got the triangles...

For this problem, The answer is ##6.28 m/s##, however, I got ##-314 m/s## and I am not sure what I have done wrong. My working is, ##H'(t) = \lim_{t \rightarrow 1} \frac{H(t) - H(1)}{t - 1}## ##H'(t) = \lim_{t \rightarrow 1} \frac{-1.86t^2 + 10t -8.14}{t - 1}## ##H'(t) = \lim_{t \rightarrow 1}...

U1 = -GMm/r K1 = (1/2)mvi^2 U2 = as r approaches infinity, U2 approaches zero K2 = (1/2)mvf^2 (1/2)mvi^2 - GMm/r = (1/2)mvf^2 + 0 vi = √(vf^2 + (2GMm)/r) = √(250,000 + 2(6.7 E-11)(6 E23)/3400) = 153776.815 But that is not the correct answer, can anybody see my mistake/misunderstanding?

TL;DR Summary: Can comets either one or many create simultaneously overlapping impact craters for higher air pressures to breed algae and plant life as a micro climate? Is there a depth limit to crater creation on a planet? Let’s say Mars for a depth of 30km can it be done? Assuming the...

Astronauts heading towards Mars (and hopefully return) will need protection against the harmful effects of gamma rays in space for this long trip. Apparently, much shorter trips have not caused enough bodily harm to be of much concern. However, a 6-month or longer trip might be a real problem. I...

Digging 8km under the lowest point on Mars will get us Mount Everest conditions for air pressure. I was thinking of two ways of doing said title: Nuclear powered bulldozers working around the clock to clear away dirt on a low point on Mars such as...

The Moon will occult Mars in less than a week for a good chunk of the northern hemisphere. That's the evening of Wednesday, Dec. 7th, for all of Canada and much of the United States. That's the wee morning hours of Thursday, Dec. 8th, for much of Europe...

I want to know why no one thinks we should hit Mars with The behemoth comet, C/2014 UN271 (Bernardinelli-Bernstein) after watching this fun video It is for the very highly educated, I know, that's what I am. Basically,, how much of a propellant push could nuking the behemoth comet result...

https://www.techradar.com/news/mars-probe-running-windows-98-receives-software-update-after-two-decades

My understanding of why Mars lost its atmosphere was because it cooled down too much internally and that when this happened, the planet lost its magnetic field that helped protect it from solar winds (which then ended up stripping away the planets atmosphere). Is there anything that people could...

Deadline April 18, 2022 Competition Eligibility at: https://www.drivendata.org/competitions/93/nasa-mars-spectrometry/rules/ HeroX Challenge page: https://www.herox.com/MarsSpectrometry Brief article: https://www.space.com/nasa-mars-habitable-herox-competition Good Luck, and have Fun! Tom

Summary:: Astronauts landing on Mars When will the Crewed space mission for Mars exploration event taking place in future? Do you feel that in case life exists for survival on Mars planet, the future generations may actually visit and stay there for many years? Do you feel there will be a...

I have this code which convert decimal number to binary number, but I do not understand how representation 8762 like 1000 0111 0110 0010. 8 7 6 2 1000 0111 0110 0010 .data strmsg: .asciiz "please Enter a decimal number: " .text #main method .globl main #main function main...

My attempt: Let ##M_e## be the mass of the Earth and ##M_m## be the mass of the person. Let ##D_{EM}## be the distance from Earth to Mars and let ##R_e## be the radius of the earth. Defining these constants (leaving off units for brevity): Masses in Kilograms (G is not a mass but I'll leave...

A good candidate for the sample retrieval mission. https://www.nasa.gov/feature/jpl/nasa-s-perseverance-mars-rover-makes-surprising-discoveries

Venus is not at the top of the priority list when it comes to the colonizing of space. Mars mostly takes the top spot but when checked deeply, it is very comparable to Mars Colonization and in some aspects it is even better than Mars Colonization. [Spammy link redacted by the Mentors]

https://scitechdaily.com/nasas-insight-mission-reveals-the-detailed-internal-structure-of-mars/ https://www.nationalgeographic.com/science/article/nasa-insight- spacecraft -reveals-first-peek-inside-mars-center https://www.nasa.gov/feature/jpl/nasa-s-insight-reveals-the-deep-interior-of-mars...

If we want to build domed cities on Mars ( which i think a much cheaper option than O Neill cylinders) we need lots of local material. As far as i know oxygen and water arent scarce much of theese materials didnt escape but became peroxides and ice in the regolith. However are there enough...

Paraterraforming requires lots of water and CO2, much of them freezen in the polar caps. What could be the plausible ways to collect them? In low gravity and thin air, could ship sized land vehicles or maybe entire cities move? Or should they build lots of villages powered by a central nuclear...

Mars underwent a biologically induced change (assumption -- via photosynthesis) to the atmosphere billions of years ago. Rock strata were identified that are evidence of an earlier atmosphere, that is different from what came later. The more recent atmosphere oxidized iron in most of the...

The solar wind driven removal of water from Mars can only explain a portion of the water thought to have once existed there. This process, indicated by the D/H ratio of normal hydrogen to its heavier form (deuterium) of Martian hydrogen, can only a count for the lower estimates of Martian...

Cleared for take-off on Runway 4 !

If someone understood it, then kindly explain..?

Heat cannot be removed by liquid-to-gas heat exchangers since there is no substantial atmospheres on the Moon or on Mars. It cannot be dissipated by venting steam since there is a critical water shortage. It cannot be dissipated by rocks or soil since both are essentially thermal insulators. It...

https://apod.nasa.gov/apod/ap210106.html It sure looks like some strange life form to me.

https://www.space.com/ancient-earth-had-thick-toxic-atmosphere-like-venus

I was reading this: https://www.cnbc.com/2020/12/01/elon-musk-highly-confident-spacex-will-land-humans-on-mars-by-2026.html It just seems that the Delta-V requirements - especially with a spacecraft that is stocked with supplies for a few years or for the Hohmann transfer helio-orbits - will...

I am looking for the names of 2 craters on Mars. They are of interest to me because they are very deep & may have enough air pressure to support liquid water. If you have an internet link for looking up names that will do, but the links I websearched don't show the 2 craters below. The...

There are hundreds of thousands of images of Mars. In my spare time, I've browsed through many, and have kept track of the most interesting ones (to my eyes). So of course, I would be interested to discuss the features I found interesting with people that are more qualified to analyze them. I...

How scientists calculated the weight of Mars to be 6.39 × 10^23 kg?

I cannot understand the solution at https://www.aapt.org/physicsteam/2015/upload/E3-2-5-solutions.pdf, because the solution is terse and skip steps (at least i think so). I figured out that the name of this transfer is "Hohmann-Transfer Orbit". A detailed walkthrough would be appreciated. If I...

What are NASA's or any other space agency's current plans at terraforming Mars? I know we have a sequence of rover missions lined up, but are they aimed at anywhere? Before heading to college, I came to the conclusion that Mars ultimately lacked provenance because it had oddly shaped moons...

Hello, I thought that it was easy to calculate the difference of aging on different planets, just by knowing the difference of gravity between them. But it is not so easy... I will also consider that the difference of gravity will not reduce our age because of other reasons (on muscles, on...

''Elon Musk says he plans to send 1 million people to Mars by 2050 by launching 3 Starship rockets every day and creating 'a lot of jobs' on the red planet'' It's been a while since Elon made the above statement, however isn't he being extremely optimistic about everything, really? What are...

Just quick question: Could you put space stations (or even other small planets) at any aribitrary orbit or any radius in between Jupiter and Mars? Or, if something attempted to do so, would the orbit be unstable, and the object drift to either Mars or Jupiter? I was reading about Lagrange...

Could a hybrid airship like spacecraft ever so slowly shed speed using Mars' atmosphere while remaining low orbit while buoyant enough to serve as a glider?

NASA and the US Geological Survey have produced a new geological map of Mars. Better than before. Very detailed and interesting (to me anyway). Lots of download options. Here is one of my favorite Martian regions:

1. ρmars atmosphere = 0.02 kgm^-3 volume of a sphere = 4 / 3 𝜋 𝑟^3 gmars = 3.8 ms^-2 So: Volume of a hemisphere=2/3 𝜋 𝑟^3 r=7.75 m Archimedes' principle states that the upthrust on an object is equal to the weight of fluid that the body displaces To find the upthrust produced...

Assuming that both the Earth and Mars's atmospheric pressure follows an exponential curve, how many kilometers deep would the average bore-hole on Mars need to be in order to arrive at a depth where the atmospheric pressure was 0.35 bar or approximately 5 psi? What about 0.7 bar?

Yup, they all appear together pre-dawn on March 18 to the SE. The planets hang out together for a week or so, while the Moon moves on. https://www.news4jax.com/weather/2020/03/16/you-are-missing-planet-palooza-if-you-dont-look-up-the-next-few-days/

Mentor note: I have removed author information and have enclosed the code below in code tags. First library: MarsRover_lineFinder2.ino #include <ZumoShield.h> #include "MRlinelib.h" #include <QTRSensors.h> #include <Pushbutton.h> #include <ZumoReflectanceSensorArray.h> #include <ZumoMotors.h>...

Plasma-powered rockets could reduce the travel time to Mars by roughly half. https://theconversation.com/traveling-to-mars-with-immortal-plasma-rockets-58705

In the early parts of the books, Mars' ambient atmo pressure (and temperature) was increased, including not just CO2, but oxygen as well. It rose to the point where they only needed masks that let through oxygen but not CO2. In my amateur view, I would expect that this would not work very...

that this nation should commit itself to achieving the goal, before this decade is out, of landing a woman on Mars and returning her safely to the Earth.